A quick clamping device

Abstract

The present invention discloses a quick clamping clamp device, which includes a clamp, one end of which is fixed to the bottom of a device support, and the other end of which passes through the bottom of the device support and is fixed to the bottom of an adjustment support, and a driving locking structure is fixed on the device support, which can drive the adjustment support to move forward and backward in a straight line direction and position and adjust the locking diameter of the clamp. The clamp is locked to the pipeline through a cylinder drive or a lever drive mechanism, and the locking diameter of the clamp is fine-tuned by turning the handle, which greatly reduces the wear of the clamp, prolongs the service life of the clamp, and ensures the locking effect of the clamp. The clamp can be driven by air source, hydraulic pressure or manual drive as a power source, which greatly reduces the dependence on the sleeve, air gun or handheld electric gun, effectively reduces the locking cost of the pipeline, and ensures the locking effect, and has good applicability for locking pipelines of different sizes.

Description

Technical Field

[0001] The invention relates to the technical field of automobile pipeline connection equipment, in particular to a quick-pressing clamp device. Background Art

[0002] At present, various pipeline connections in engine tests are mainly compressed and sealed with worm gear heavy-duty clamps. The worm gear heavy-duty clamps use worm gears and threaded transmission to adjust the locking diameter of the clamps. Therefore, the clamps are overly dependent on sleeves and air guns (or handheld electric guns) for assembly. The air guns and handheld electric guns are expensive and costly. At the same time, the worm gear heavy-duty clamps will cause wear after repeated tightening and assembly and disassembly, resulting in a short life and low strength of the worm gear heavy-duty clamps, and they are easy to break under high pressure.

[0003] Patent application number 201720884537.8, entitled "Pressure Regulator Valve Cartridge Quick Release Tool," discloses a pressure regulator valve cartridge quick release tool comprising two handles and an annular clamp formed by a left and right half-circlip. The handles are symmetrically positioned on the outer circumference of the annular clamp. The inner walls of the left and right half-circlips are each provided with an arc-shaped rubber pad. The left and right half-circlips are hingedly connected at one end and equipped with a quick-locking adjustment device at the other end. The quick-locking adjustment device comprises a quick-press wrench and an adjusting screw. The quick-press wrench has an eccentric portion at one end, which is integral with the quick-press wrench and hingedly connected to the head of the adjusting screw. The tail of the adjusting screw passes through through-holes in the right and left half-circlips, respectively, and is connected to two locking nuts. The adjusting screw's stem is sheathed with a spring, which presses between the left and right half-circlips. The inner wall of the arc-shaped rubber pad is provided with a plurality of raised points. A plastic spacer is mounted on the top of the adjusting screw, one end of which is in close contact with the right half of the retaining ring and the other end with the eccentric portion. The outer wall of the handle is knurled. After disassembling the pressure regulator, first clamp the left and right half retaining rings onto the valve cylinder. Then, press the quick-release wrench. Once tightened, pull the two handles upward to quickly remove the valve cylinder. For valve cylinders of different sizes, the opening size of one end of the left and right half retaining rings can be adjusted by rotating the nut, allowing for clamping and removal of valve cylinders of different sizes.

[0004] The patent application number is 202021720707.7, and the name is "Multifunctional Mobile Gas Supply Vehicle". A mobile gas supply vehicle is disclosed, which includes a gas cylinder body, the bottom of which is supported on a base, and the lower end surface of the base is equipped with two wheels and a support leg distributed in a triangle; a lower clamp is installed on the lower circumference of the gas cylinder body, and a lower clamp seat is installed on the circumference of the lower clamp; an upper clamp is installed on the upper circumference of the gas cylinder body, and an upper clamp seat is installed on the circumference of the upper clamp The supporting bottom surfaces of the upper and lower hoop seats are parallel to the axis of the gas cylinder body, located in the same vertical plane, and perpendicular to the base. The axles of the two wheels are coaxial, and the axle axes are parallel to the supporting bottom surface of the lower hoop seat. Two upward-extending base uprights are welded to the upper end surface of the base. The two base uprights are located above the two wheels, and the upper ends of the two base uprights are fixedly connected to the two ends of the lower hoop seat. Three support rods with expandable lower ends are symmetrically hinged on the circumference of the upper clamp in the shape of a regular triangle. The upper and lower clamps are respectively fixed to the upper and lower parts of the gas cylinder body, and the base is fixedly connected to the lower hoop seat via the base uprights. When loading or unloading the vehicle, the lower support legs and the upper upper hoop seat can be grasped, making it easier for workers to carry. When transporting the vehicle, the three support rods are retracted. The gas cylinder body is placed flat and placed on the vehicle floor via the upper and lower hoop seats, making it easy to transport and preventing the cylinder body from rolling. After unloading, grab the upper hoop seat to tilt the gas cylinder body forward, so that the foot plate at the lower end of the support leg is off the ground, and the two wheels can move it a short distance. The upper hoop seat serves as a handrail at the upper end. After arriving at the construction site, the gas cylinder body is erected, and the lower end of the support leg is supported on the ground by the foot plate, which greatly increases the contact area with the ground. It is not easy to sink on soft ground and forms a small triangular support with the two wheels; then the three support rods are symmetrically spread out, and the lower end of the support rod is inserted into the ground to form a large triangular support. This ensures that the gas cylinder body remains in a vertical state and ensures safe production. The device of this utility model has a simple structure and a small size. The added weight of the gas cylinder is very limited. It can replace an additional special vehicle, does not occupy additional vehicle cargo space, and is easy to transport; at the same time, it meets the needs of transportation fixation, carrying handles, short-distance travel, safe placement and fixation at the work site. It is convenient and practical, with low production costs and good economic and safety benefits. The upper clamp is formed by an arc divided into three equal parts and hinged by two upper clamp hinges. The openings of the upper clamp are connected and enclosed with each other by upper clamp buckles. Upper clamp C-shaped hooks with openings facing back to back are symmetrically welded on both sides of one of the upper clamp hinges, and each group of upper clamp C-shaped hooks are located in the same horizontal plane; the upper hoop seat is in a straight line shape, and two pairs of upper hoop seat lugs are welded at both ends of the top surface of the upper hoop seat facing the upper clamp. The two pairs of upper hoop seat lugs extend horizontally in the direction of the upper clamp, and a vertically extending upper hoop seat pin is connected between each pair of upper hoop seat lugs. The axes of the two upper hoop seat pins are parallel to the axis of the gas cylinder body and are respectively embedded in the corresponding upper clamp C-shaped hooks.The arc of the upper clamp is divided into three equal parts and integrated through two upper clamp hinges, allowing the upper clamp to have a sufficiently large opening so that it can be directly attached to the gas cylinder body without having to be inserted from the top of the cylinder body. The upper clamp C-shaped hooks on either side of the upper clamp hinge form a set, and the distance between the two upper clamp C-shaped hooks can be adjusted by changing the angle of the hinge. First, the two upper clamp C-shaped hooks are hooked onto the upper clamp seat pins of the upper clamp seat, and then the upper clamp is closed around the upper part of the gas cylinder body. As the upper clamp is rounded, the distance between the two upper clamp C-shaped hooks increases, and the two upper clamp seat pins slide into the hook grooves of the upper clamp C-shaped hooks. The upper clamp is then closed and secured to the upper part of the gas cylinder body using the upper clamp buckle. At this point, the upper clamp seat is automatically attached to the upper clamp. Because the distance between the openings of the two upper clamp C-shaped hooks is greater than the distance between the two upper clamp seat pins, the upper clamp seat will not loosen or fall off the upper clamp, making the connection very convenient and reliable. During disassembly, simply loosen the upper clamp buckle, open the upper clamp, and easily remove the upper clamp seat. Three pairs of strut hinges are symmetrically welded to the outer circumferential wall of the upper clamp. An upper sleeve head is hinged to each pair of strut hinges via a short pin. A strut locking screw is screwed onto the lower circumferential wall of each upper sleeve head, and the outer end of each strut locking screw is connected to a strut locking handle. The upper sleeve head allows the strut to be inserted into the upper sleeve head. The strut locking handle is used to tighten the inner end of the strut locking screw against the outer wall of the strut, securing the strut in the upper sleeve head. The upper sleeve head swings within the strut hinge seat via the short pin, adapting to the retraction or expansion of the strut. The lower clamp is formed by a circular arc divided into three equal parts, hinged together by two lower clamp hinges. The opening of the lower clamp is connected and enclosed by a lower clamp buckle. C-shaped hooks with opposite openings are symmetrically welded to either side of one of the lower clamp hinges, with each set of C-shaped hooks located in the same horizontal plane. The lower clamp seat is in a straight line shape, with two pairs of lower clamp seat lugs welded to both ends of the lower clamp seat's top surface. The two pairs of lower clamp seat lugs extend horizontally in the direction of the lower clamp. A vertically extending lower clamp seat pin is connected between each pair of lugs. The axes of the two lower clamp seat pins are parallel to the axis of the gas cylinder body and are respectively embedded in corresponding lower clamp C-shaped hooks. The arc of the lower clamp is divided into three equal parts and integrated by the two lower clamp hinges. This allows the lower clamp to have a sufficiently large opening so that it can be directly attached to the gas cylinder body without having to be inserted from the bottom of the cylinder body.The lower clamp C-shaped hooks on either side of the lower clamp hinge are a set, and the distance between them can be adjusted by adjusting the angle of the hinge. First, hook each lower clamp C-shaped hook onto the lower clamp seat pin of the lower clamp seat. Then, close the lower clamp around the lower part of the cylinder body. As the lower clamp rounds, the distance between the two lower clamp C-shaped hooks increases, and the two lower clamp seat pins slide into the hook grooves of the lower clamp C-shaped hooks. The lower clamp is then closed and secured to the lower part of the cylinder body using the lower clamp buckle. The lower clamp seat is now automatically hooked to the lower clamp. Because the distance between the openings of the two lower clamp C-shaped hooks is greater than the distance between the two lower clamp seat pins, the lower clamp seat will not come loose from the lower clamp, making the connection very convenient and reliable. For disassembly, simply loosen the lower clamp buckle and open the lower clamp to easily remove the lower clamp seat. Three lower sleeve heads are symmetrically welded to the circumferential outer wall of the lower clamp; when the upper sleeve head is in a vertical state, it is coaxial with the corresponding lower sleeve head. During transportation, the support rod is inserted into the upper and lower sleeve heads, folded against the side of the gas cylinder body and fixed. A lower clamp seat sleeve is also connected between each pair of lower clamp seat lugs. The two lower clamp seat sleeves are respectively located on the outside of the lower clamp seat pin and the axes of the two are parallel to each other; the upper ends of the two base uprights are respectively inserted into the corresponding lower clamp seat sleeves, and the middle side walls of the two lower clamp seat sleeves are respectively screwed with upright locking screws. The inner ends of the two upright locking screws face each other and respectively rest on the circumference of the corresponding base upright, and the outer ends of the two upright locking screws are respectively provided with upright locking handles. The upper ends of the two base uprights are respectively inserted into the corresponding lower hoop seat sleeves, and the inner ends of the upright locking screws are tightened against the circumference of the base uprights via the upright locking handles to achieve a fixed connection between the lower hoop seat and the base. Conversely, loosening the upright locking screws can easily separate the lower hoop seat from the base. The upper clamp buckle includes a quick-press handle and a cooperating hook and shackle. The hook is welded to one side of the upper clamp opening. The fixed end of the quick-press handle is hinged to the buckle seat via a buckle pin. The buckle seat is welded to the other side of the upper clamp opening. The shackle is hinged to the middle of the quick-press handle. The buckle pin is equipped with a torsion spring, and the two ends of the torsion spring press on the quick-press handle and the buckle seat, respectively. Before pressing the quick-press handle, hang the shackle on the hook, and then press the quick-press handle downward. The shackle and the hook are tightened, and the hinge point of the shackle is located on the inner side of the extension line of the hook and the buckle pin, so the shackle is self-locking. An arc-shaped positioning plate is welded to the upper end face of the base. The lower end of the gas cylinder body rests on the inner wall of the arc-shaped positioning plate. The two ends of the outer wall of the arc-shaped positioning plate are respectively connected to the root of the base upright via a connecting support plate. The lower end of the gas cylinder body rests on the concave arc of the arc-shaped positioning plate, which can quickly achieve accurate positioning; the connecting support plate can improve the connection strength between the base upright and the arc-shaped positioning plate and the base.

[0005] While the two aforementioned comparative documents each disclose a clamp structure, the clamp designed in the "Pressure Regulator Valve Cylinder Quick Release Tool" can only clamp a very limited valve cylinder size, and the clamp's adjustable range is very small. The clamp designed in the "Multi-functional Mobile Air Supply Vehicle" lacks a quick-release function. Summary of the Invention

[0006] The purpose of the present invention is to solve the deficiencies of the above-mentioned background technology and to provide a quick clamping device which is easy and quick to install and disassemble, has a simple structure and can adapt to the clamping requirements of various pipe diameters.

[0007] To achieve this purpose, the quick compression clamp device designed by the present invention is characterized in that it includes a clamp, one end of the clamp is fixed to the bottom of the device support, and the other end of the clamp passes through the lower part of the device support and is fixed to the bottom of the adjustment support, and the device support is fixed with a driving locking structure that can drive the adjustment support to move back and forth in a straight line direction and position and adjust the locking diameter of the clamp.

[0008] Furthermore, the driving and locking structure includes a threaded sleeve with an internal thread and a threaded rod whose rear part is threadedly connected to the threaded sleeve and whose front part is rotatable and passes through the adjustment support; the threaded sleeve can move along its axial direction through the device support, and the rear end of the threaded sleeve is connected to a lever driving mechanism or a pressure driving mechanism that can drive it to move forward and backward along its axial direction and position it, and the front end of the threaded rod is fixed with a rotating handle.

[0009] Furthermore, a through hole is provided in the device support along the axial direction of the threaded sleeve, a guide sleeve is coaxially fixed in the through hole, and the threaded sleeve can coaxially pass through the guide sleeve while moving forward and backward along its axial direction.

[0010] Furthermore, an L-shaped bracket is fixedly connected to the rear surface of the device support and is an integral structure therewith, comprising a horizontal bracket plate vertically fixedly connected to the lower part of the rear surface of the device support and a vertical bracket plate vertically fixedly connected to the rear end of the horizontal bracket plate; the lever drive mechanism is connected between the vertical bracket plate and the rear end of the threaded sleeve.

[0011] Furthermore, a handle bar for human hand holding is fixed to the side of the device support.

[0012] Furthermore, the lever drive mechanism includes a connecting bracket whose front end is hingedly connected to the rear end of the threaded sleeve, the rear end of the connecting bracket is hingedly connected to a hinge plate, the rear end of the hinge plate is hingedly connected to the vertical bracket plate, and a driving lever is fixed on the hinge plate.

[0013] Furthermore, a positioning groove for accommodating the vertical bracket plate is provided in the middle of the connecting bracket.

[0014] Furthermore, the rear end of the driving lever is fixed to the hinge plate, and the angle between the driving lever and the hinge plate is not less than 90°.

[0015] The pressure driving mechanism is a cylinder, which is fixed on the device support, and the piston rod of the cylinder is coaxially fixed with the threaded sleeve.

[0016] Furthermore, a bearing coaxially arranged with the threaded rod is fixed on the adjustment support, and the threaded rod includes an optical axis section whose front end coaxially passes through the bearing and the adjustment support, and the rotating handle is fixed on the axis section of the optical axis section passing through the bearing and the adjustment support.

[0017] The beneficial effects of the present invention are: the clamp is locked to the pipe through a cylinder drive or lever drive mechanism, and the locking diameter of the clamp is fine-tuned by rotating the handle, which greatly reduces the wear of the clamp, extends the service life of the clamp, and ensures the locking effect of the clamp. The clamp can be driven by air, hydraulic or manual power source, which greatly reduces the dependence on the sleeve, air gun or hand-held electric gun, effectively reduces the locking cost of the pipe, and ensures the locking effect, and has good applicability for locking pipes of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a quick clamping device using a lever drive mechanism in the present invention;

[0019] Figure 2 A three-dimensional diagram of a quick clamping device using a pressure-driven mechanism in the present invention;

[0020] Among them, 1—clamp, 2—device support, 3—adjustment support, 4—threaded sleeve, 5—threaded rod (5.1—optical axis section, 5.2—threaded shaft section), 6—rotating handle, 7—guide sleeve, 8—horizontal bracket plate, 9—vertical bracket plate, 10—connecting bracket, 11—hinge plate, 12—driving lever, 13—positioning slot, 14—cylinder, 15—bearing, 16—handle rod. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0023] like Figure 1 —2 shows a quick clamping device, which includes a clamp 1, one end of which is fixed to the bottom of the device support 2, and the other end of the clamp 1 passes through the lower part of the device support 2 and is fixed to the bottom of the adjustment support 3. The device support 2 is fixed with a driving locking structure that can drive the adjustment support 3 to move forward and backward in a straight line and position and adjust the locking diameter of the clamp 1. The drive locking structure includes a threaded sleeve 4 with an internal thread and a threaded rod 5, the rear end of which is threadedly connected to the threaded sleeve 4 and the front end of which can rotate through the adjustment support 3. The threaded sleeve 4 can move axially through the device support 2. The rear end of the threaded sleeve 4 is connected to a lever drive mechanism or a pressure drive mechanism that can drive it to move forward and backward along its axial direction and position it. The front end of the threaded rod 5 is fixed with a rotating handle 6 (a bearing 15 coaxially arranged with the threaded rod 5 is fixed to the adjustment support 3. The threaded rod 5 includes an optical axis section 5.1 at the front end that coaxially passes through the bearing 15 and the adjustment support 3. The optical axis section 5.1 passes through the bearing 15 and the axial section of the adjustment support 3, and the rotating handle 6 is fixed to the rotating handle 6). A through hole is opened in the device support 2 along the axial direction of the threaded sleeve 4. A guide sleeve 7 is coaxially fixed in the through hole. The threaded sleeve 4 can coaxially pass through the guide sleeve 7 so that it can move forward and backward along its axial direction.

[0024] like Figure 1 In the illustrated quick-clamp device, when the rear end of the threaded sleeve 4 is connected to a lever-driven mechanism that drives it forward and backward along its axial direction and positions it, an L-shaped bracket integrally formed with it is fixedly connected to the rear surface of the device support 2. The bracket comprises a horizontal support plate 8 vertically fixed to the lower portion of the rear surface of the device support 2 and a vertical support plate 9 vertically fixed to the rear end of the horizontal support plate 8. The lever-driven mechanism is connected between the vertical support plate 9 and the rear end of the threaded sleeve 4. A handle 16 for manual grip is fixed to the side of the device support 2. The lever-driven mechanism comprises a connecting bracket 10, the front end of which is hingedly connected to the rear end of the threaded sleeve 4. The rear end of the connecting bracket 10 is hingedly connected to a hinge plate 11. The rear end of the hinge plate 11 is hingedly connected to the vertical support plate 9. A driving lever 12 is fixed to the hinge plate 11. A positioning slot 13 is provided in the middle of the connecting bracket 10 to accommodate the vertical support plate 9. The rear end of the driving lever 12 is fixed to the hinge plate 11 , and the angle between the driving lever 12 and the hinge plate 11 is not less than 90°.

[0025] like Figure 2 In the quick-tightening clamp device shown, when the rear end of the threaded sleeve 4 is connected to a pressure drive mechanism that can drive it to move forward and backward along its axial direction and position, the pressure drive mechanism is a cylinder 14, which is fixed on the device support 2, and the piston rod of the cylinder 14 is coaxially fixed to the threaded sleeve 4.

[0026] The quick-tightening clamp device of the present invention is used as follows: when using a lever-driven mechanism, place the clamp 1 on the pipe, hold the handle 16, and rotate the drive lever 12 to expand and deform the clamp 1, thereby tightening the pipe connection. Finally, rotate the rotation handle 6 to adjust the clamping diameter of the clamp 1, thereby tightening the clamp 1 to the pipe connection. The handle 16 is removable after use.

[0027] When a pressure-driven mechanism, i.e., the air cylinder 14 or the hydraulic cylinder is used to lock the clamp 1 to the pipeline, the clamp 1 is put on the pipeline, and the air cylinder 14 or the hydraulic cylinder is controlled to drive the clamp 1 to enlarge and deform its diameter to compress the pipeline connection, and finally the handle 6 is rotated to adjust the clamping diameter of the clamp 1 so that the clamp 1 compresses the pipeline connection.

[0028] The clamp 1 is locked to the pipe through the transmission of the cylinder 14 or the lever drive mechanism, and the locking diameter of the clamp 1 is fine-tuned by turning the handle 6. This greatly reduces the wear of the clamp 1, extends the service life of the clamp 1, and ensures the locking effect of the clamp 1. The clamp 1 can be powered by air, hydraulic, or manual drive, which greatly reduces the dependence on sleeves, air guns, or handheld electric guns, effectively reduces the locking cost of the pipe, and ensures the locking effect. It has good applicability for locking pipes of different sizes. The clamp 1 can be made of thickened and widened steel strips. When using an airbag cylinder, the processing precision requirements are low and the cost is low. The airbag cylinder has high airtightness, and the airtightness does not decrease with time of use. Cylinder failure can be discovered in time and the airbag can be directly replaced. After the outer shell of the cylinder 14 is slightly damaged, the function of the cylinder 14 is basically unaffected, and the maintenance cost is low.

[0029] Finally, it should be pointed out that the above embodiments are only more representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there may be many variations. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be considered to fall within the scope of protection of the present invention. It should be noted that the description of the above technical solutions is exemplary, and this specification can be embodied in different forms and should not be interpreted as being limited to the technical solutions set forth herein. On the contrary, providing these descriptions will make the disclosure of the present invention thorough and complete, and will fully convey the scope disclosed in this specification to those skilled in the art. In addition, the technical solution of the present invention is only limited by the scope of the claims.

[0030] The shapes, sizes, ratios, angles, and numbers disclosed for describing various aspects of this specification and claims are merely examples, and therefore, this specification and claims are not limited to the details shown. In the following description, when a detailed description of a related known function or configuration is determined to be unnecessary to obscure the focus of this specification and claims, the detailed description will be omitted. Where the terms "include," "have," and "include" are used in this specification, unless otherwise specified, another part or parts may also be present, and the terms used may generally be singular but may also represent plural forms.

[0031] The features of the various embodiments of the present invention may be combined or spliced ​​with each other in part or in whole, and may be implemented in various different configurations as will be fully understood by those skilled in the art. The embodiments of the present invention may be implemented independently of each other, or may be implemented together in a mutually dependent relationship.

Claims

1. A quick clamping device, characterized in that: It comprises a clamp (1), one end of which is fixed to the bottom of a device support (2), and the other end of which passes through the lower part of the device support (2) and is fixed to the bottom of an adjustment support (3); a driving locking structure is fixed on the device support (2) and can drive the adjustment support (3) to move forward and backward in a straight line direction and position and adjust the locking diameter of the clamp (1); The driving and locking structure comprises a threaded sleeve (4) with an internal thread and a threaded rod (5) whose rear portion is threadedly connected to the threaded sleeve (4) and whose front portion is rotatable and passes through the adjustment support (3); the threaded sleeve (4) can pass through the device support (2) movably along its axial direction, and the rear end of the threaded sleeve (4) is connected to a lever driving mechanism or a pressure driving mechanism that can drive it to move forward and backward along its axial direction and position it, and the front end of the threaded rod (5) is fixed with a rotating handle (6).

2. The quick clamp device according to claim 1, characterized in that: A through hole is provided in the device support (2) along the axial direction of the threaded sleeve (4), a guide sleeve (7) is coaxially fixed in the through hole, and the threaded sleeve (4) can coaxially pass through the guide sleeve (7) so as to move forward and backward along its axial direction.

3. The quick clamp device according to claim 2, characterized in that: An L-shaped bracket which is an integral structure with the device support (2) is fixedly connected to the rear surface of the device support (2), and comprises a horizontal bracket plate (8) which is vertically fixedly connected to the lower part of the rear surface of the device support (2) and a vertical bracket plate (9) which is vertically fixedly connected to the rear end of the horizontal bracket plate (8); the lever driving mechanism is connected between the vertical bracket plate (9) and the rear end of the threaded sleeve (4).

4. The quick clamp device according to claim 3, characterized in that: A handle bar (16) for holding by hand is fixed on the side of the device support (2).

5. The quick clamp device according to claim 3, characterized in that: The lever drive mechanism comprises a connecting bracket (10) whose front end is hingedly connected to the rear end of the threaded sleeve (4); the rear end of the connecting bracket (10) is hingedly connected to a hinge plate (11); the rear end of the hinge plate (11) is hingedly connected to the vertical bracket plate (9); and a driving lever (12) is fixed to the hinge plate (11).

6. The quick clamp device according to claim 5, characterized in that: A positioning groove (13) for accommodating the vertical support plate (9) is provided in the middle of the connecting support (10).

7. The quick clamp device according to claim 5, characterized in that: The rear end of the driving lever (12) is fixed on the hinge plate (11), and the angle between the driving lever (12) and the hinge plate (11) is not less than 90°.

8. The quick clamp device according to claim 2, characterized in that: The pressure driving mechanism is a cylinder (14), the cylinder (14) is fixed on the device support (2), and the piston rod of the cylinder (14) is coaxially fixed with the threaded sleeve (4).

9. The quick clamp device according to claim 2, characterized in that: A bearing (15) coaxially arranged with the threaded rod (5) is fixed on the adjustment support (3); the threaded rod (5) comprises an optical axis section (5.1) coaxially passing through the bearing (15) and the adjustment support (3) at the front end; the rotating handle (6) is fixed on the shaft section of the optical axis section (5.1) passing through the bearing (15) and the adjustment support (3).

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